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# WESTERMO TELEINDUSTRI AB
MA-44 DC
Card Type Modem (asynchronous)
Chip Set Unidentified
I/O Options DC power, RS-232 serial port,
RS-422/485
Maximum Modem Rate 38.4Kbps
Data Modulation C/CCITT V.24/V.28, V.11
Protocol
Error Unidentified
Correction/Compression
Data Bus External
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------------+-------+---------------+-------|
| Power connector (terminal | CN1 | RS-232-C port | CN3 |
| block) | | | |
|----------------------------+-------+---------------+-------|
| Terminal block | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------------+-------+-----------|
| » | 115V AC enabled | S1 | On |
|---+------------------------------------+-------+-----------|
| | 230V AC enabled | S1 | Off |
|---+------------------------------------+-------+-----------|
| | 2-wire transmission | S2/6 | On |
|---+------------------------------------+-------+-----------|
| » | 4-wire transmission | S2/6 | Off |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | S2/7 | Off |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | S2/8 | Off |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | S2/9 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA BIT SELECTION |
|------------------------------------------------------------|
| Setting | S2/4 | S2/5 |
|----------------------+------------------+------------------|
| | 9 | On | On |
|----+-----------------+------------------+------------------|
| » | 10 | On | Off |
|----+-----------------+------------------+------------------|
| | 11 | Off | On |
|----+-----------------+------------------+------------------|
| | 12 | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TERMINATION WITH FAIL-SAFE SELECTION |
|------------------------------------------------------------|
| Setting | S3/1 | S3/2 | S3/3 | S3/4 |
|---------------------------+--------+-------+-------+-------|
| | Termination (4-wire) | On | On | Off | Off |
|---+-----------------------+--------+-------+-------+-------|
| | Termination (2-wire) | Off | Off | On | On |
|---+-----------------------+--------+-------+-------+-------|
| » | No termination | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA RATE SELECTION |
|------------------------------------------------------------|
| Setting | S2/1 | S2/2 | S2/3 |
|---------------------+------------+------------+------------|
| | 300bps | Off | Off | Off |
|---+-----------------+------------+------------+------------|
| | 600bps | On | Off | Off |
|---+-----------------+------------+------------+------------|
| | 1200bps | Off | On | Off |
|---+-----------------+------------+------------+------------|
| | 2400bps | On | On | Off |
|---+-----------------+------------+------------+------------|
| | 4800bps | Off | Off | On |
|---+-----------------+------------+------------+------------|
| » | 9600bps | On | Off | On |
|---+-----------------+------------+------------+------------|
| | 19200bps | Off | On | On |
|---+-----------------+------------+------------+------------|
| | 38400bps | On | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+--------------+--------+-----------------------------|
| LED1 | Unidentified | On | Power is on |
|------+--------------+--------+-----------------------------|
| LED1 | Unidentified | Off | Power is off |
|------+--------------+--------+-----------------------------|
| LED2 | Unidentified | On | Data is being received |
|------+--------------+--------+-----------------------------|
| LED2 | Unidentified | Off | Data is not being received |
|------+--------------+--------+-----------------------------|
| LED3 | Unidentified | On | Data carrier present |
|------+--------------+--------+-----------------------------|
| LED3 | Unidentified | Off | Data carrier not present - |
| | | | connection not established |
|------+--------------+--------+-----------------------------|
| LED4 | Unidentified | On | CTS signal is high - device |
| | | | ready to send data |
|------+--------------+--------+-----------------------------|
| LED4 | Unidentified | Off | CTS signal is low |
|------+--------------+--------+-----------------------------|
| LED5 | Unidentified | On | RTS signal is high |
|------+--------------+--------+-----------------------------|
| LED5 | Unidentified | Off | RTS signal is low |
|------+--------------+--------+-----------------------------|
| LED6 | Unidentified | On | Data is being transmitted |
|------+--------------+--------+-----------------------------|
| LED6 | Unidentified | Off | Data is not being |
| | | | transmitted |
+------------------------------------------------------------+